Originally Posted by
Darth Lefty
I finally figured out that if I point my toes rather than letting my ankles drop, it really helps. This seems like it has most to do with how the weight of the leg is supported.
I don't see it mentioned when people talk about fit but I have to have the front of my knee in ~1 cm in front of the spindle on a DF bike or above the spindle on a recumbent even if the extension is correct. I figured this out on my recumbent first and noticed I was pushing through the pedaling circle instead of tangent to the edge and that was hurting my knees. If I focus on pushing the pedals at the correct angle, it gets my knees up into the correct position and my knees are fine after the ride. If I don't focus the tendons don't hurt during the ride but are stressed afterwards. Sounds kind of similar to your pointed toes thing. With shorter cranks I'm pretty sure I wouldn't have to think about it.